<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Welcome index</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script>
    <script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

</head>
<body>
<ul class="list-group">
     <! 将这个静态文件循环显示出来-->
     {% for file in file_s  %}
     <li class="list-group-item">
         <a href="static/file/{{ file }}">{{ file }}</a>
     </li>
     {% endfor %}
     
</ul>
</body>
</html>